Metal-work; a handbook for teachers and students (1914)
Adam, Hugh M. [from old catalog], Evans, James Humphrey, [from old catalog] joint author · New York, Longmans, Green and co.; London, E. Arnold · leaf 108
that the file cutson the forward stroke only, and it is during this strokethat the pressure must be applied, always proportionate tothe size of the file and the work being done. Whilst it is notnecessary to lift the file on the return stroke, no pressureshould be applied, but rather a tendency to… … v: Fig. 33. -o- 92 METAL-WORK out of truth. The usual tendency in filing flat surfaces isalways to remove the edges, leaving a convex surface. Byfiling across the material at an angle of about 45 degrees,moving the file forward and sideways in one motion, occa-sionally reversing the direction from…
Metal-work
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